How are we going to analyze the tooth profile of the snake spring coupling? Machinery manufacturers in Li told you that the coupling transmission parts of the tooth shape is divided into linear and curved two. The coupling transmission part is divided into one group or several groups of snake spring, embedded in the teeth of the two valve coupling flange, in order to realize the connection of two half couplings; In order to prevent the snake-shaped single yellow from being thrown out under the action of centrifugal force and avoid the dry friction between the snake-shaped spring yellow and the teeth, it is necessary to cover with a closed shell and fill with lubricating oil or grease. Snake spring coupling is divided into transverse stiffness and variable stiffness, mainly depends on the following two shapes of the teeth in contact with the spring:

The tooth shape of the snake spring coupling is linear: under normal load, the distance between the snake spring and the tooth contact point does not change with the change of the snake yellow deformation, the stiffness is constant, the relative Angle of the two halves of the coupling and the torque is linear, belonging to the constant stiffness product. Snake type spring coupling gear curve type: when the load is small, the linear part of the snake type spring and the connected axis are basically parallel; When the load increases, the deformation of the snake spring increases, and the contact arc with the tooth also increases, while the distance between the contact point and the tooth becomes shorter and shorter. As the stiffness increases, the relative rotation Angle of the two-half coupling has a nonlinear relationship with the transmitted torque, which is a variable stiffness product.

Machinery manufacturers produce snake spring coupling tooth shape for linear tooth shape is convenient for product processing, and the cost is low, but only suitable for transmission torque changes small working conditions. If the gear shape of the coupling is curved, it is suitable for the working conditions of torque change and positive and negative rotation, and has a better cushioning effect: but the process of curved gear shape is poor and the manufacturing cost is higher.